carb tuning

  1. B

    throttle hang-ups and nonstarts

    I have never owned a motorcycle or worked on small engines, so I figured rebuilding a non-running 1982 Yamaha maxim 400xs would be a great place to start. According to the previous owner this bike sat in a garage for six years but before it sat it ran great. I went through the carb twice and...
  2. P

    XS360 idle issues

    A few months ago I purchased a 1977 Yamaha xs360. The bike was in a very rough condition when I bought it so i spent these last months rebuilding nearly everything. I'm running stock-ish (not open) exhausts and the original carbs with pod filters. I replaced the #130 main jet with a #135 to...
  3. Winnipeg_79_XS400

    Over raving/vacuum leak

    1979 xs400F So I am now TRYING to get the carbs sync. Once I let the bike idle/warm up and shut off the choke, the bike takes off/over rev's. New battery-good charge New coils-Both primary's and secondary's checked out on install. Going to chack again Electronic Ignition! Valve spacing has...
  4. Winnipeg_79_XS400

    1979 XS400F SOHC

    It's about time I post a thread for my bike. I bought my first bike and am "so far" managing to figure out how to get things done, mostly from this site, Thank you. That said, I am having my carbs cleaned, I'm trying to figure out how to tune them for my bike when I get them back. I have read 3...
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